1Institute of Neuroimmunology and Clinical MS Research (INiMS), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2Competenzzentrum Versorgungsforschung in der Dermatologie (CVderm), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3Department of Health Sciences, University of Hamburg, Hamburg, Germany
4Multiple Sclerosis Program, Department of Neurology and Cousins Center for Psychoneuroimmunology, UCLA School of Medicine, Los Angeles, CA, USA